全文获取类型
收费全文 | 151篇 |
免费 | 17篇 |
专业分类
电工技术 | 7篇 |
化学工业 | 30篇 |
金属工艺 | 4篇 |
机械仪表 | 16篇 |
建筑科学 | 6篇 |
能源动力 | 9篇 |
轻工业 | 46篇 |
水利工程 | 2篇 |
无线电 | 9篇 |
一般工业技术 | 16篇 |
冶金工业 | 4篇 |
自动化技术 | 19篇 |
出版年
2023年 | 1篇 |
2022年 | 3篇 |
2021年 | 9篇 |
2020年 | 6篇 |
2019年 | 5篇 |
2018年 | 12篇 |
2017年 | 7篇 |
2016年 | 4篇 |
2015年 | 11篇 |
2014年 | 8篇 |
2013年 | 12篇 |
2012年 | 10篇 |
2011年 | 14篇 |
2010年 | 12篇 |
2009年 | 10篇 |
2008年 | 8篇 |
2007年 | 5篇 |
2006年 | 5篇 |
2005年 | 5篇 |
2004年 | 1篇 |
2003年 | 2篇 |
2001年 | 2篇 |
1998年 | 1篇 |
1996年 | 2篇 |
1994年 | 1篇 |
1990年 | 1篇 |
1988年 | 1篇 |
1985年 | 2篇 |
1984年 | 2篇 |
1980年 | 2篇 |
1979年 | 1篇 |
1978年 | 2篇 |
1973年 | 1篇 |
排序方式: 共有168条查询结果,搜索用时 203 毫秒
161.
The In‐Gap Electronic State Spectrum of Methylammonium Lead Iodide Single‐Crystal Perovskites 下载免费PDF全文
162.
This work proposes decomposition of square approximation algorithm for neural network weights update. Suggested improvement
results in alternative method that converge in less iteration and is inherently parallel. Decomposition enables parallel execution
convenient for implementation on computer grid. Improvements are reflected in accelerated learning rate which may be essential
for time critical decision processes. Proposed solution is tested and verified on multilayer perceptrons neural network case
study, varying a wide range of parameters, such as number of inputs/outputs, length of input/output data, number of neurons
and layers. Experimental results show time savings up to 40% in multiple thread execution. 相似文献
163.
M.N.H. Damir 《Wear》1973,26(2):219-227
A study of the error in measurement due to the kinematics of the stylus of the measuring instrument is presented. A method of determining the point of separation of the stylus from the measured surface and the path of the stylus after separation is established. Stylus spring stiffness to prevent separation of the stylus and to attain a minimum measuring force is also established. 相似文献
164.
Virgo Collaboration Acernese F Alshourbagy M Amico P Aoudia S Antonucci F Astone P Avino S Babusci D Ballardin G Barone F Barsuglia M Barsotti L Beauville F Bigotta S Birindelli S Bizouard MA Boccara AC Bondu F Bosi L Braccini S Bradaschia C Brillet A Brisson V Brocco L Buskulic D Calloni E Campagna E Cavalier F Carbognani F Cavalieri R Cella G Cesarini E Chassande-Motin E Christensen N Clapson AC Frédéric C Corda C Corsi A Cottone F Coulon JP Cuoco E Dari A Datillo V Davier M del Prete M 《Applied optics》2007,46(17):3466-3484
The Virgo interferometer, aimed at detecting gravitational waves, is now in a commissioning phase. Measurements of its optical properties are needed for the understanding of the instrument. We present the techniques developed for the measurement of the optical parameters of Virgo. These parameters are compared with the Virgo specifications. 相似文献
165.
166.
Assessment of beer quality based on foamability and chemical composition using computer vision algorithms,near infrared spectroscopy and machine learning algorithms 下载免费PDF全文
167.
Many industrial applications with real-time demands are composed of mixed sets of tasks with a variety of requirements. These
can be in the form of standard timing constraints, such as period and deadline, or complex, e.g., to express application specific
or nontemporal constraints, reliability, performance, etc. As many algorithms focus on specific sets of task types and constraints
only, system design has to focus on those supported by a particular algorithm, at the expense of the rest.
In this paper, we present a method to deal with a combination of mixed sets of tasks and constraints: periodic tasks with
complex and simple constraints, soft and firm aperiodic, and sporadic tasks. We propose the use of an offline scheduler to
manage complex timing and resource constraints of periodic tasks and transform these into a simple EDF model with start-times
and deadlines. At run-time, the execution of the offline scheduled tasks is flexibly shifted in order to allow for feasible
inclusion of dynamically arriving sporadic and aperiodic tasks. Sporadic tasks are guaranteed offline based on their worst-case
activation frequencies. At run-time, this pessimism is reduced by the online algorithm which uses the exact knowledge about
sporadic arrivals to reclaim resources and improve response times and acceptance of firm aperiodic tasks. 相似文献
168.
Katarina Marušić Ena Pezić Nives Matijaković Mlinarić Pavo Dubček Jordi Sancho-Parramon Damir Kralj Branka Mihaljević 《Small (Weinheim an der Bergstrasse, Germany)》2023,19(30):2301104
Self-assembled monolayers (SAMs) are an important element of modern nanotechnology and surface functionalization. However, their application is still limited because they are easily removed from the surface of the object in corrosive environments. Crosslinking would make SAMs more resistant to the corrosive environment they are exposed to. In this work, how to strongly crosslink SAMs made of non-toxic and biodegradable fatty acids on metal surfaces using ionizing radiation has been demonstrated for the first time. The crosslinked nanocoatings are stable over time and have significantly improved properties compared to SAMs. Thus, crosslinking opens up the possibility of using SAMS in a variety of different systems and on different materials for surface functionalization to achieve stable and durable surface properties such as biocompatibility or selective reactivity. 相似文献